Home / 2,921.77-4,376.43-2,719.47

Finding the Fourth Proportional to 2,921.77, 4,376.43 and 2,719.47

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Solution

The fourth proportional to 2,921.77, 4,376.43 and 2,719.47 is: 4,073.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.77 : 4,376.43 = 2,719.47 : x
  2. Step 2: Convert to fraction form
    2,921.77/4,376.43 = 2,719.47/x
  3. Step 3: Cross multiply
    2,921.77x = 4,376.43 × 2,719.47
  4. Step 4: Simplify right side
    2,921.77x = 11,901,586.50
  5. Step 5: Solve for x
    x = 11,901,586.50/2,921.77
  6. Step 6: Final answer
    x = 4,073.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.